USB adapter for USB devices or USB chargerUniversal Dual USB 2A 5V DC adapter through which two devices, such as Smartphones, music players can be charged.Simply use your existing USB charging cables to charge your device. There is no charging cable included.Double USB output: 2A total output current. The maximum output current is 2A that are distributed to the USB ports, but only if the two USB ports are used simultaneously.12-24V DC power input, can be used in any car with a 12-24V voltage; Compact design for easy transport. Practical DC adapter for traveling by car